A Characteristic That First Shows Up in the Formal Operations

question 22

Multiple Choice

A characteristic that first shows up in the formal operations stage is _______.

• A)irreversibility
• B)abstract thinking
• C)egocentrism
• D)logical thinking

---

Definitions:

Ultrasound

A technique that uses high-frequency sound waves to create images of the inside of the body.

Heart Motion

The movement of the heart as it contracts and relaxes to pump blood throughout the body.

PVC

Polyvinyl chloride, a synthetic plastic polymer used in a wide variety of applications, from piping and clothing to furniture and signage.

ECG

Electrocardiogram, a medical test that records the electrical activity of the heart over a period of time using electrodes placed on the skin.